Can spring mvc trim all strings obtained from forms?

Question

I know struts2 default config will trim all strings obtained from forms.

For example:

I type

\"   whatever \"

in a form and submit, I will get

Answer 1

first，trim requestparam which is String，you can create a class and implimplements WebBingdingInitializer

 @ControllerAdvice
public class CustomWebBindingInitializer implements WebBindingInitializer {

    @InitBinder
    @Override
    public void initBinder(WebDataBinder webDataBinder, WebRequest webRequest) {
        webDataBinder.registerCustomEditor(String.class, new StringTrimmerEditor(true));
    }
}

please use componentScan make this Class to be a Spring Bean.

But, I don't know how to trim the String value in requestBody JSON data.